Wire-pointing machine



(No Model.)

W. H. DAYTON.

WIRE POINTING MACHINE. No. 341,558. Patented May 11 1886.

UNITED STATES PATENT OFFIC "WILLIAM H. DAYTON, OF TORRINGTON,CONNECTICUT.

WIRE-POINTlNG MACHINE.

QPEGIFICATION forming part of Letters Patent No. 341,558, dated May 11,1886. Application filed November 2, 1835. Serial No.181,(i02. (Nomodel.)

.T 0 all 2071,0712, it may 0071067721.

Be it known that I, \VILLIAM H. DAYTON, of Torrington, in the county ofLitchfield and State of Connecticut, have invented an In1- provement inMachines for Making Needle- Blanks and other Articles, of which thefollowing is a specification.

A wire has been pointed and needle-blanks have been formed by thecompressing action of dies that are revolved by and with a shaft, andare acted upon by swinging toggle-blocks. A reference is hereby made toLetters Patent No. 52,493, granted February 6, 1866, to Hopson, Brooksand Manville,and to Letters Patent No. 58,730, granted October 9, 1866,to E. J. Manville. In wire-pointing machines of this general character adifficulty has been eXperi enced from the dies compressing the metal incertain directions only. For inst-nnce, in the first-named patent thecompressing actions are ninety degrees apart, and in the last-named suchcompressing actions are sixty degrees apart; hence in both instancesthere is a tendency to consolidate the metal more in some radial linesthan in others. I rectify this tendency and overcome the aforesaiddifficulty by gradually revolving the head that holds the toggleblocks,in order that no two compressions shall be in exactly the same radiallines. Thereby the swaging action is much more uniform and the needleblank more perfect.

In the drawings, Figure l is a vertical longitudinal section showing theparts of my swaging apparatus, and Fig. 2 is a front ele vation.

The shaft a is provided with a transverse mortise at one end, into whichis received the two sWaging-dies c 0. These are held in place by acap-plate, f, and the extent to which the dies may be opened betweeneach com pressing operation is determined by the pointed screws 13,passing through the cap-plate f into conical recesses in the dies 0 c,as in the said Patent No. 58,730; or any other suitable appliance may bemade use of,having this object in View. The shaft a is tubular, so as toallow for the passage into it of the reduced needle-blank or otherarticle that is being operated upon, and l this shaft a and the dies 0 care revolved at the desired speed by a pulley, 0, or other suitabledevice. Around this shaft or there is a tubular journal. b, and this issupportedin a suitable head-stock, D. and upon the tubularjournal I) isthe circular head-block I), having recesses for the reception of thetoggle-blocks it and bearing-blocks m, against which the radial setscrews Z act to adjust the operation of the toggleblocksas in the saidPatent No. 52,493. At the back end of the tubular journal b there is agear-wheel, s, and upon the head-stock a worm-pinion, t, is supported incontact with the wheel 8, and this worm-pinion tis revolved by suitablepower applied to the pulley u, or in any suitable manner. It is now tobe understood that the shalt a is revolved with rapidity, and carrieswith it the swaging-dies cc, and that the toggle-blocks 6 act upon suchswaging-dies to press them toward each other, as in the aforesaidpatents; but in consequence of the gradual revolution given to theheadblock by the worm-pinion tand gear-wheel s the toggle blocks it arecarried around with the head block, and hence they are constantlychanging their position in relation to the piece of wire that is beingoperated upon, so that the compressing actions follow one another allthe Way round the piece of wire operated upon,thns rendering suchcompressing actions more uniform and the work performed more perfect.

I claim as my invention The combination, with the revolving shaft andswaging-dies, of a head-block and the toggle blocks carried by the same,and mechanism, substantially as specified, for gradually revolving thehead-block and changing the points at which the swaging operations takeplace, successively, upon the wire or article that is being reduced orpointed, substantially as specified.

Signed by me this 23d day of May, A. D. 1885.

\VILLlAll H. DAYTON.

Vitnesses:

ISAAC W. BRooKs, CHAS. L. McNEIL.

